I must proportion you must proportion she must proportion we must proportion you must proportion they must proportion
V-ing form
I must be proportioning you must be proportioning she must be proportioning we must be proportioning you must be proportioning they must be proportioning
Perfect
I must have proportioned you must have proportioned she must have proportioned we must have proportioned you must have proportioned they must have proportioned
V-ing perfect
I must have been proportioning you must have been proportioning she must have been proportioning we must have been proportioning you must have been proportioning they must have been proportioning
Negation
Simple form
I must not proportion you must not proportion she must not proportion we must not proportion you must not proportion they must not proportion
V-ing form
I must not be proportioning you must not be proportioning she must not be proportioning we must not be proportioning you must not be proportioning they must not be proportioning
Perfect
I must not have proportioned you must not have proportioned she must not have proportioned we must not have proportioned you must not have proportioned they must not have proportioned
V-ing perfect
I must not have been proportioning you must not have been proportioning she must not have been proportioning we must not have been proportioning you must not have been proportioning they must not have been proportioning
Interrogative form
Simple form
must I proportion? must you proportion? must she proportion? must we proportion? must you proportion? must they proportion?
V-ing form
must I be proportioning? must you be proportioning? must she be proportioning? must we be proportioning? must you be proportioning? must they be proportioning?
Perfect
must I have proportioned? must you have proportioned? must she have proportioned? must we have proportioned? must you have proportioned? must they have proportioned?
V-ing perfect
must I have been proportioning? must you have been proportioning? must she have been proportioning? must we have been proportioning? must you have been proportioning? must they have been proportioning?
Interro-negative form
Simple form
must I not proportion? must you not proportion? must she not proportion? must we not proportion? must you not proportion? must they not proportion?
V-ing form
must I not be proportioning? must you not be proportioning? must she not be proportioning? must we not be proportioning? must you not be proportioning? must they not be proportioning?
Perfect
must I not have proportioned? must you not have proportioned? must she not have proportioned? must we not have proportioned? must you not have proportioned? must they not have proportioned?
V-ing perfect
must I not have been proportioning? must you not have been proportioning? must she not have been proportioning? must we not have been proportioning? must you not have been proportioning? must they not have been proportioning?